McAfee, Symantec adapt to changing cybersecurity landscape

Silicon Valley has rediscovered cybersecurity. The last time it was this focused on the field was in the 1990s. Two giants emerged from that generation: McAfee and Symantec. These may well be the two security companies that remain the most recognizable household names, thanks to their traditional firewall and anti-virus products. Now they find their turf being encroached from two sides. From one side comes tech giants like Hewlett-Packard and Cisco Systems, which see new revenue opportunity in cybersecurity. From the other side comes a rush of start-ups backed by large chunks of venture capital.